Gwaunaruu, Solomon Islands offers 1 beach perfect for sunbathing, surfing, swimming, and more. Gwaunaruu is known for its proximity to the Langa Langa Lagoon and traditional shell money crafting. The best time to travel to Gwaunaruu, Solomon Islands, is from May to October, when the average air temperature is around 27°C (81°F) and the water temperature is approximately 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!